COVID-19 Emergency Addendum #2
In response to the COVID-19 virus
spread, the PTI Unbonded Tendon Plant Certification Program is
temporarily conducting Virtual Inspections.
• All program requirements remain in effect if the
plant is in operation.
• In line with the current program, we ask you to
stay in communication with PTI if production or office hours are
• If office staff is working remotely, accommodations
must be made for at least one person on site to be able to obtain
necessary documentation electronically.
Read the full addendum here
Unbonded Tendon Plant Certification Program
Launched in 1989, the Post-Tensioning Institute (PTI) program for
Certification of Plants Producing Unbonded Single Strand Tendons has
been developed to provide independent certification of a plant's
extrusion and/or fabrication process and its capability to produce
standard and/or encapsulated unbonded single strand tendons. This
certification program also includes evaluation of calibration practices
for jacks and gauges used for stressing single strand tendons. The
program is applicable to all facilities whether fixed or mobile.
The certification of a plant under this program indicates that the
plant and the personnel are capable of producing unbonded single strand
tendons in conformance with the Post-Tensioning Institute's
Specification for Unbonded Single Strand Tendons. The certification
program extends only to the process for extrusion and/or fabrication
procedures and materials within the examined plant, and is expressly
not intended to cover procedures or events subsequent to shipment of
tendons to the job site.
PTI Certified Plants and Certification Actions
Click here for the current list of PTI Certified Plants.
The latest certification actions are listed in the pdf list of PTI
Certified Plants on the right side of the page.